Extended Data Fig. 2: Entanglement and central charge.
From: Realizing discontinuous quantum phase transitions in a strongly correlated driven optical lattice
a, Von Neumann entanglement entropy across bipartitions of the ground state for L = 64 and \({{{\mathcal{A}}}}=3\) nm with different shaking frequencies, fitted with the conformal field theory (CFT) prediction in Eq. (10). b-f, Fitted central charge c as a function of the shaking frequency at increasing shaking amplitudes, exhibiting discontinuous jumps and smooth peaks characteristic of discontinuous (first-order) and continuous phase transitions, respectively (shown by the vertical dashed lines, with the same color convention as in the phase diagram in Supplementary Fig. S3).
